Please help with the attached question:

The number of annual claims for malicious damage to a local school are modeled by a Poisson distribution with parameter 1, where > is initially assumed to be one of the values (1, 2, 3, 4, 5) with prior distribution fA(X) = (0.3, 0.3, 0.2, 0.1, 0.1). Over a three-year period, the annual claims experience was (3, 2, 7). Update the distribution for ) (find the posterior) and find the Bayesian estimates of A when using the quadratic, absolute value and zero-one loss functions